IP addressing for SMB devices and DHCP 19All reference topologies assume that each device on the subnet has itsSNMP client enabled.IP addressing for SMB devices and DHCPNortel recommends using DHCP to obtain IP addresses for SMB devicesand end nodes (such as PCs and IP phones).The SMB reference topologies 2 and 3 rely on a DHCP server running onthe BSR222 in the subnet (typically occupying address 192.168.1.1). SMBreference topology 1 relies on a DHCP server running on a third-party router.DHCP serves IP addresses dynamically to all devices and end nodesconnected to the subnet. As devices are connected to the subnet, theytake IP addresses from the DHCP pool from 192.168.1.2 to 192.168.1.127inclusive.If DHCP is not running on the subnet, all SMB devices are shipped withfactory-default IP addresses that exist within ranges of the subnet thatminimize IP address conflict.The following table lists the default IP addresses, valid IP ranges, anddefault DHCP status for all SMB devices.IP addressing for SMB devices and DHCPDevicetypeDefault IPaddressIP addressrangeDHCP/BOOTP NotesBSR222 192.168.1.1 None DHCP serverenabled.IP addresspool startingaddress =192.168.1.2,pool size = 126.This isthe defaultgateway.This isthe DHCPserver.Pool size iscurrently setat 126.BCM50 1.0 192.168.1.2 None DHCP clientenabledOnly oneBCM50 recommendedin an SMBnetwork.BCM50 2.0 192.168.1.2 None DHCP clientenabledOnly oneBCM50 recommendedin an SMBnetwork.SMBSmall and Medium Business Solutions Overview and Configuration GuideNN47910-200 02.01 StandardRelease 1.00 11/22/2006Copyright © 2006, Nortel Networks Nortel Networks Confidential.